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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id$ */
package org.apache.fop.render.ps;
import java.awt.Rectangle;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import org.junit.Test;
import org.w3c.dom.Document;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import org.apache.commons.io.IOUtils;
import org.apache.batik.anim.dom.SAXSVGDocumentFactory;
import org.apache.xmlgraphics.image.loader.impl.ImageXMLDOM;
import org.apache.xmlgraphics.ps.DSCConstants;
import org.apache.xmlgraphics.ps.PSGenerator;
import org.apache.xmlgraphics.ps.PSResource;
import org.apache.xmlgraphics.ps.dsc.DSCException;
import org.apache.xmlgraphics.ps.dsc.DSCParser;
import org.apache.xmlgraphics.ps.dsc.events.DSCCommentPage;
import org.apache.xmlgraphics.ps.dsc.events.DSCCommentPages;
import org.apache.xmlgraphics.ps.dsc.events.DSCCommentTitle;
import org.apache.xmlgraphics.ps.dsc.events.DSCEvent;
import org.apache.fop.apps.FOUserAgent;
import org.apache.fop.apps.FopFactory;
import org.apache.fop.fonts.FontInfo;
import org.apache.fop.render.intermediate.IFContext;
/**
* Tests the image handling in PostScript output.
*/
public class ImageHandlingTestCase extends AbstractPostScriptTest {
/**
* Tests JPEG handling.
* @throws Exception if an error occurs
*/
@Test
public void testJPEGImageLevel3() throws Exception {
innerTestJPEGImage(3);
}
/**
* Tests JPEG handling.
* @throws Exception if an error occurs
*/
@Test
public void testJPEGImageLevel2() throws Exception {
innerTestJPEGImage(2);
}
private void innerTestJPEGImage(int level) throws Exception {
FOUserAgent ua = fopFactory.newFOUserAgent();
PSDocumentHandler handler = new PSDocumentHandler(new IFContext(ua));
PSRenderingUtil psUtil = handler.getPSUtil();
psUtil.setLanguageLevel(level);
psUtil.setOptimizeResources(true);
ua.setDocumentHandlerOverride(handler);
// Prepare output file
File outputFile = renderFile(ua, "ps-jpeg-image.fo",
"-if-l" + psUtil.getLanguageLevel());
verifyPostScriptFile(outputFile, psUtil.getLanguageLevel());
}
private void verifyPostScriptFile(File psFile, int level)
throws IOException, DSCException {
InputStream in = new java.io.FileInputStream(psFile);
in = new java.io.BufferedInputStream(in);
try {
DSCParser parser = new DSCParser(in);
DSCCommentPages pages = (DSCCommentPages)gotoDSCComment(parser, DSCConstants.PAGES);
assertEquals(1, pages.getPageCount());
//Skip procsets and encoding
gotoDSCComment(parser, DSCConstants.BEGIN_RESOURCE);
gotoDSCComment(parser, DSCConstants.BEGIN_RESOURCE);
gotoDSCComment(parser, DSCConstants.BEGIN_RESOURCE);
gotoDSCComment(parser, DSCConstants.BEGIN_RESOURCE);
PSResource form2 = new PSResource(PSResource.TYPE_FORM, "FOPForm:2");
checkResourceComment(parser, DSCConstants.BEGIN_RESOURCE, form2);
DSCCommentTitle title = (DSCCommentTitle)parser.nextEvent().asDSCComment();
assertEquals("image/jpeg test/resources/images/bgimg300dpi.jpg", title.getTitle());
String resourceContent = getResourceContent(parser);
if (level == 3) {
assertContains(resourceContent, "/FOPForm:2");
assertContains(resourceContent, "/DCTDecode filter");
assertContains(resourceContent, "/ReusableStreamDecode filter");
} else {
assertContains(resourceContent, "/FOPForm:2");
assertContains(resourceContent, "/DCTDecode filter");
assertAbsent(resourceContent, "/ReusableStreamDecode filter");
}
//---=== Page 1 ===---
DSCCommentPage page = (DSCCommentPage)gotoDSCComment(parser, DSCConstants.PAGE);
assertEquals(1, page.getPagePosition());
PSResource form1 = new PSResource(PSResource.TYPE_FORM, "FOPForm:1");
checkResourceComment(parser, DSCConstants.BEGIN_RESOURCE, form1);
title = (DSCCommentTitle)parser.nextEvent().asDSCComment();
assertEquals("image/jpeg test/resources/images/bgimg72dpi.jpg", title.getTitle());
resourceContent = getResourceContent(parser);
if (level == 3) {
assertContains(resourceContent, "/FOPForm:1");
assertContains(resourceContent, "/DCTDecode filter");
assertContains(resourceContent, "/ReusableStreamDecode filter");
} else {
assertContains(resourceContent, "/FOPForm:1");
assertContains(resourceContent, "/DCTDecode filter");
assertAbsent(resourceContent, "/ReusableStreamDecode filter");
}
} finally {
IOUtils.closeQuietly(in);
}
}
private void assertContains(String text, String searchString) {
assertTrue("Text doesn't contain '" + searchString + "'", text.indexOf(searchString) >= 0);
}
private void assertAbsent(String text, String searchString) {
assertTrue("Text contains '" + searchString + "'", text.indexOf(searchString) < 0);
}
private String getResourceContent(DSCParser parser) throws IOException, DSCException {
StringBuffer sb = new StringBuffer();
while (parser.hasNext()) {
DSCEvent event = parser.nextEvent();
if (event.isLine()) {
sb.append(event.asLine().getLine()).append('\n');
} else if (event.isDSCComment()) {
if (DSCConstants.END_RESOURCE.equals(event.asDSCComment().getName())) {
break;
}
}
}
return sb.toString();
}
@Test
public void testPSImageHandlerSVG() throws IOException {
FOUserAgent ua = FopFactory.newInstance(new File(".").toURI()).newFOUserAgent();
String svg = "<svg xmlns:xlink=\"http://www.w3.org/1999/xlink\" xmlns=\"http://www.w3.org/2000/svg\" "
+ "width=\"210mm\" height=\"297mm\" font-size=\"20\" stroke-width=\"0.1mm\" font-family=\"Arial\">\n"
+ " <filter id=\"drop-shadow-font\" width=\"150%\" height=\"150%\">\n"
+ " <feGaussianBlur in=\"SourceAlpha\" result=\"blur\" stdDeviation=\"1\"/>\n"
+ " <feOffset in=\"blur\" result=\"offsetBlur\" dy=\"1\" dx=\"1\"/>\n"
+ " <feBlend in=\"SourceGraphic\" in2=\"offsetBlur\" mode=\"normal\"/>\n"
+ " </filter>\n"
+ " <text x=\"4.9mm\" filter=\"url(#drop-shadow-font)\" y=\"10.5mm\" fill=\"black\" "
+ "rotate=\"30 30 0 15\">Hello SVG with FOP</text>\n"
+ "</svg>";
SAXSVGDocumentFactory factory = new SAXSVGDocumentFactory(null);
Document doc = factory.createDocument(null, IOUtils.toInputStream(svg));
ByteArrayOutputStream bos = new ByteArrayOutputStream();
new PSImageHandlerSVG().handleImage(
new PSRenderingContext(ua, new PSGenerator(bos), new FontInfo()),
new ImageXMLDOM(null, doc, ""),
new Rectangle());
assertTrue(bos.toString().contains("/DataSource Data"));
}
}
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